The poem "No Men Are Foreign" by James Kirkup promotes the message of unity and harmony among all people regardless of differences. The poet says that no men are strange and no countries foreign, as we are all human beings made of the same flesh and blood. While we may have different customs and beliefs, our basic human emotions are the same. The poem stresses that we should not hate others or consider them enemies. Instead, we should recognize our universal brotherhood as children of God living on the same earth.